Punching and fastener-inserting mechanism



"Dec. 9,1924. 1,518,147

1 G. W. JACQUES PUNCHING AND FASTENER INSERTING MECHANISM Filed Oct. 17, 1919 INVENTOR WFTNE SE5: GEEIRGE w. .JABQ

ATTORNEY Patented Dec. 9, 1924..

UNITED STATES PATENT OFFICE.

GEORGE W. JACQUES, OF STRATFORD, CONNECTICUT, ASS-IGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

PUNCHING AND FASTENER-INSERTING MECHANISM.

Application filed October 1'7, 1919.

new and useful Improvements in Punching and Fastener-Inserting Mechanisms, of

which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machines in which an article of work is penetrated repeatedly by a tool and in which automatic mechanism feeds the work step by step to cause successive parts of the work to register successively" with the penetrating tool. I

Briefly stated, the object of the invention is to provide improved means for stripping the work from the penetrating tool to avoid mounted on pivot studs 3 and 4 to swing interference with the feeding of the work.

The invention is illustrated and hereinafter described in connection with an eyeleting machine of the duplex type, but it is not limited to eyeleting machines, or to any machine of the duplex type. Still, as shownby the accompanying drawings, the penetrating tools from which the work isto be stripped are the punches by which holes are formed in the work for the reception ofthe eyelets.

In duplex eyeleting machines as heretofore made for commercial use the punches have not been used to feed the work but have been retracted from the work at the Furthermore, the usual punching locality.

3 presserfeet have been so close to the punching locality as to strip the work from the punches. On the other hand, the organization in the present case is such that the punches are used to feed the work, and although they may punch the work close to the presserfeet their feeding movement takes them away from the latter so that the presserfeet are too far from them at the moment of withdraw]. to insure stripping. Nevertheless, the present invention provides for overcoming this condition, since the stripping means are arranged to function adjacent to the withdrawing locality regardless of the distance of the latter from the punching.

locality.

The invention consists in certain novel Serial No. 331,447.

features of construction and arrangement described in the following specification and shown by the drawings, in which,

Fig. 1 represents a side elevation, with parts omitted or broken away, of a duplex eyelet setting machine equipped with strippers constructed according to this invention;

Fig. 2 represents a front elevation of the feed frame or lever showing the position of the telescopic punches and sets, with relation to the stripping mechanism and the actuating hammers during the setting operation; and

.Fig. 8 is a plan of the front portion of the feed frame or lever.

'In the drawings 1 represents the main frame of a machine of the type disclosed in the Eames and Jacques Patent 1,4:3t,688, granted November 7, 1922. A lever 2 is about an inclined axis for the purpose of feeding the work. At its front end it is provided with bearing sockets 5 and 5 in which are slidably mounted the duplex punch and set elements 6 and 6 The lever 2 also carries a duplex anvil member with which the operative ends of the punches and sets co operate both in punching the work and setting eyelets therein in a manner disclosed in the above mentioned patent. As shown, the punch and set mechanisms comprise punches 7 arranged in telescopic relation to setting tools 8, and hammer elements 9 arranged to force first the punches and then the setting tools toward each other. The initial operative motion of the hammers is ef? fective to punch the material, and lateral. motion of the lever 2 thereafter feeds the work and releases the punches from the hammers, while the setting tools 8 are brought against the work by a further operative motion of the hammers. The feed motion of the frame or lever 2 is produced by means of a link 10 which is actuated by a cam on the machine in the manner disclosed in the above mentioned patent. The anvil member obviously per forms the function of a work-support and, as it is carried by the feed-arm 2, it partakes of the feeding movements of the latter and also that of the punching and setting tools.

Bearings 5 and 5 are provided with grooves 11, 11 on their delivery side, that is, 011 the side facing in the direction of feed. Seated in these grooves are the stripper members 12, 12 which may be adjusted from and toward the work by reason of having slots 13, 13 to receive set-screws, but which remain a fixed distance apart in non-clamping relation while the machine is operating. The work engaging faces of the members 12, 12" are crowned transversely of the lines of feed, as shown at 14, 1 1 and partially surround the ends of the inserting tools 8, as illustrated in Fig. 2, to be in the most effective position to strip the work from the punches and sets on the refractive motion of the latter. v

In the operation of the machine two confronting elements of work are placed in the machine, one'o-n each side oftheanvil member, and are simultaneously punched, then fed from right to left, and finally provided with two eyeletssimultaneously as described in-the above mentioned patent, the strippers 12, 12 serving to strip the work from the tools after each setting operation.

Having thus described one embodiment of thisinvention, though it is evident that many changes might be made therein without departing from its spirit or scope, what is claimed is,-

1. A duplex machine ofjthe character de scribed comprising two tools movable to ward each other to penetrate two work elements in confronting relation, mechanism to move said tools toward and from each other, two non-clamping strippers arranged in confronting relation to strip said work elements fronrsaid tools as the latter move away from each other, and a work-support arranged to function between said work elements.

2. A duplex machine of the character described comprising two punching tools movable toward each other to punch two confronting work elements, a duplex punch-bed arranged to function between said work elements, and: two rigid work-engaging members arranged a fixed distance apart to strip the work from said tools respectively as the latter move away from each other.

3. A machine of the character described comprising a work-support, punching mechanism including a punching tool, workfeedingnieans, and a stripper for stripping the work from said tool, said stripper being arranged in non-clamping relation to said worlcs'upport and at the delivery side of said tool withr'efe'rence to the direction of feed and wholly apart from the work support to permit movement of the work transverse to the direction of feed.

4. A machine of the character described comp'ris'inga work-support, punching means including a tool arranged to punch flat sheet material lying on said work-sup a'ort, means for feeding the work edgew'ise, and a nonclamping stripper arranged to strip the work from said tool, the work-engaging face of said stripper being convex transversely of the direction of feed to facilitate moving the work transversely of said direction.

5. A machine of the cl'lara-cter described comprising a work-support arranged to function between two confronting work elements, two punching tools arranged to act against opposite sides of said work-support to punch said work elements, two tlastenerinserting tools arranged to act against said opposite sides of the work-support, a frame in which said tools are mounted, said frame being movable to shift said tools laterally, and two strippers arranged to strip said work elements from said punching tools respectively, said strippers being mounted on said frame to remain in coopeative relation to the punching tools.

6. A machine of the character described comprising a leciprocatory work-feeding frame, punching tools and fastener-inserting tools mounted in said frame to operate on two confronting work elen'ients, and strippers carried by said frame and arranged to strip said work elements from the punching tools respectively.

7. In a duplex fastener setting machine, in combination, a pair of devices each comprising a punch and set arranged to operate on two superposed pieces of work placed between said devices, a feed frame in which said pairs of punches and sets are axially movable and a )air of stripper members carried by said frame one adjacent to each punch and set and positioned beyond the same in the direction of feed for stripping work therefrom.

S. In a duplex fastener setting machine, in combination, a pair of punches and a pair of sets arranged to operate on two superposed pieces of work placed therebetween, a feed frame, in which said pairs of punches and sets are axially nmvable and a pair of stripper men'ibers adjustably lixed to said frame one adjacent to each punch and positioned beyond the same direction of feed for stripping work therefrom.

9. To a duplex fastener setting machine, in combination, a pair of telescopically combined punches and sets arranged to operate on two superposed pieces of work placed therebetwcen, a feed frame in which said pair of punches and sets are axially mov-- able, and a pair of stripper members carried by said frame, one adjacent to each punch and set and partially surrounding the same beyond the punch and set in the direction of feed for stripping work therefrom.

10. In a duplex fastener setting machine, in combination, a pair of telescopically combined punches and sets arranged to operate on two superposed pieces of work placed thereb'et'iveen, a feed frame in? which said pair of punches and sets are axially movable, and a pair of stripper members carried by said frame, one ad acent to each punch and set and partially surrounding the same beyond the punch and set in the direction of feed for strippingv work therefrom, each, stripper member having a work engaging face convex laterally of the direction of feed.

11. In a duplex fastener setting machine, in combination, a feed frame, opposed hearing sockets in said frame, opposed punch and set mechanisms movable in said sockets, and opposed work stripper members fixed adjacent to said sockets and in position to engage either side of the work.

12. A duplex eyeleting machine comprising two confronting punches, two confronting eyelet-inserting tools, means arranged to lie between .two confronting work elements to cooperate with said punchesand tools, means arranged to operate said punches to punch and feed the work, and two confront ing strippers arranged a fixed distance apart in non-clamping relation to strip said work elements from said punches as the latter are retracted from each other.

In testimony whereof, I have signed my name to this specification.

GEORGE W. JACQUES. 

